JAKARTA, Indonesia, 13th May, 2018 (WAM) -- At least nine people were killed and 40 injured in bomb attacks on Christians attending Sunday morning services at three churches in the Indonesian port city of Surabaya.

The Indonesian State Intelligence Agency said a Daesh-linked group, Jemaat Ansharud Daulah (JAD), was likely to be behind the attacks.

The group's alleged leader, Aman Abdurrahman, is currently on trial for a 2016 attack in Jakarta that killed eight people.